Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10857601 | Sawtooth structure with reversed cutting function and its drill series | Zhenyuan JIA, Rao Fu, Yu Sheng Bai, Bin Niu, Wei Liu +2 more | 2020-12-08 |
| 10751810 | Vertical-edge double-step sawtooth cutter for preparing high-quality holes of composite material and hybrid stack structure thereof | Zhenyuan JIA, Meng Zhao, Yu Sheng Bai, De Cheng, Chong Zhang | 2020-08-25 |